Revision Information

This content is reviewed regularly and is updated when new and relevant evidence is made available. This information is neither intended nor implied to be a substitute for professional medical advice. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with questions regarding a medical condition.

The NHLBI is a part of the National Institutes of Health. The site provides information about cholesterol, heart disease risk factors, and various heart conditions. The institute conducts and supports research related to the causes, prevention, diagnosis, and treatment of heart, blood vessel, lung, and blood diseases as well as sleep disorders.